FIGURE 1. 1) Map of eastern Zealandia including New Zealand and the Chatham Islands, grey areas = emergent, grey outline = 2000 m isobath, boxed area is displayed in Figure 1.2. 2) Map of the Chatham Islands, grey areas = emergent, boxed area is displayed in Figure 1.3. 3) Geological map of the Waihere Bay area, northwest Pitt Island, fossil locality recorded in this study is indicated, age estimates from the following sources: Tupuangi Formation (Mildenhall, 1994; Mays and Stilwell, 2013), Kahuitara Tuff (Mildenhall, 1994; Stilwell, 1998), other estimates (Campbell et al., 1993; Panter et al., 2006). Modified from figures 1 and 3 of Mays et al. (2015b) with permission.